Home / 1,678.16-2,514.36-1,332.56

Finding the Fourth Proportional to 1,678.16, 2,514.36 and 1,332.56

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Solution

The fourth proportional to 1,678.16, 2,514.36 and 1,332.56 is: 1,996.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678.16 : 2,514.36 = 1,332.56 : x
  2. Step 2: Convert to fraction form
    1,678.16/2,514.36 = 1,332.56/x
  3. Step 3: Cross multiply
    1,678.16x = 2,514.36 × 1,332.56
  4. Step 4: Simplify right side
    1,678.16x = 3,350,535.56
  5. Step 5: Solve for x
    x = 3,350,535.56/1,678.16
  6. Step 6: Final answer
    x = 1,996.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.